Submersible mixer



FIG. 1 is a top view of the submersible mixer showing our new design;

FIG. 2 is a front perspective view thereof;

FIG. 3 is rear view thereof;

FIG. 4 is right side elevational view thereof;

FIG. 5 is rear perspective view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a front view thereof.

The broken lines in the drawings depict unclaimed environmental subject matter. 

CLAIM The ornamental design for a submersible mixer, as shown and described. 